Wrapping apparatus



Feb. 21, 1933.

J. H. THEISS WRAPPING APPARATUS Filed Jan. 30, 1931 4 heets-Sheet 1NVENTOR BY 1 ATTORNEY 1933- J. H. THEISS WRAPPING APPARATUS Filed Jan.30, 1931 4 Sheets-Sheet 2 NVENTOR %n 476w Feb. 21, 1933. J. H. THEISSWRAPPING APPARATUS Filed Jan. 30, 1931 4 Sheets-Sheet 5 ATTORNEY f am...mm, M

max RN Feb. 21, 1933. .1. H. THEISS WRAPPING APPARATUS 4 Sheets-Sheet 4Filed Jan. 30, 1931 BY ATTORNEY Patented Feb. 21, 1933 JOHN H.THE-138,01 MEIUCHEN, NEW JERSEY WRAPPING APPARATUS Application filedJanuary 30, 1931. Serial No. 512,295.

This invention relates to combined wrapping, taping and tape-severingmachines and particularly to an improved apparatus for wrapping andsealing rolls of light sensitive motion picture film in a protectivecovering similar to that shown in my co-pendlng ap plication S. N.491,991, filed October 29th, 1930.

This invention aims to provide a novel apparatus' for applying andsealing a protective covering for an object approximately cylindrical inshape. A further ob]ect 1s to provide such a machine, whose variousfunctions may safely and positively performed in adarkened room underthe control of a relatively unskilled operator. An additional object isto provide such a machine that includes improved means for feeding andsevering coated sealing tape. Another object is to provide such amachine that lncludes 1mproved means for controlling the overlap of theapplied tape. Additional and more specific objects Wlll plainly appearfrom .the detailed description presented herein- To enable those skilledin the art to use my invention I will as an illustration describe apreferred method of carrying it into effect, with the understanding thatmodifications may be made and the invention embodied in different formswithout departing from its spirit and scope in its broader aspects.

In the accompanying drawings- Figure 1 is an end elevational view of theapparatus.

Figure 2 is a top plan view thereof.

Figure 3 isa vertical cross sectional view taken on the line 3-3 inFigure 2 showing an optional overlap signal.

Figure 4 is a vertical cross sectional view taken on..the line 4-4 inFigure 3, showing a phantom view of the upper crimping member in itselevated position.

Figure 5 is a cross sectional view taken on line 5-5 in Figure 3.

Figure 6 is a diagrammatic plan view of the stripping device and of thetape-feeding and severing mechanisms in their retracted positions.

igure 7 shows a similar view with the .in and supporting the uppercrimping ring- .also as a guide for the flat circu ar sheets of severingplunger in its advanced position, after having severed the tape.

Figure 8 shows a similar view with the severing plunger again in itsretracted position and with the stripping mechanism engaging v the endof the tape.

Figure 9 shows a plan view of a modified form of the severing plunger.Figure 10 shows a side elevational view of the severing mechanism.

Figure 11 shows a side elevational view of the stripping rollers and thesevering blade.

Figure 12 shows a vertical cross sectional view of one of the strippingrollers.

Figure 13 shows a top plan view thereof.

Figure 14 shows a plan view of a preferred form of the overlap controlmechanism.

Figure 15 shows a vertical cross sectional view taken on line 1515 inFigure 14.

Figure 16 shows a vertical cross sectional view taken on the arc 1616 inFigure 14.

Figure 17 shows a cross-sectional view taken on line 17-17 in Figure 3,showing an optional overlap signal.

A preferred form of my improved apparatus includes the rotatable support20, mounted within a fixed crimping rin 21 and cooperating with thevertically reciprocating pressure plate 22 rotatably mounted 23, asshown in Figure 3.

Associated with the support 20 is a device 24 to control the rotationthereof, shown in Figures 14 and 15.

Associated therewith is a tape-feeding mechanism 26, shown in Figures 2and 3. Cooperating therewith is a mechanism 27 for severing andstripping the sealing tape, shown in Figures 6 to 13 inclusive.

The apparatus is assembled on a base 28, mounted on a suitable table 29.Fixed to, the support 28 andsurrounding the crimping ring 21, is anannular guard 57, which serves both as a protection for the o erator andwrapping material, one of which is shown in its uncrimped position at76A in Figure 4.

Attached to the periphery of the support 20 and projecting above the topsurface thereof is an annular guide 70, adapted to confine thereon acylindrical object, such as a roll of motion picture film 77, underwhich is previously placed the sheet of wrapping mate? rial 75, as shownin Figure 3. g

Fixed to thebase 28 is the lower crimping ring 21, in whose lowerportion is provided a housing 30,,in which is fixed the bushing 31 andthe verticall adjustable bushing 32. Ro'tatably and slida 1y supportedwithin the bushings 31 and 32 is the shaft 33, fixed to the support 20.The shaft 33 is resiliently sup- I ported by means of the spring 34coacting with the retaining ball 35 and the shaft 36 within the bushing32.

The spring 34 is designed to have suflicient power to press upwardlyupon the shaft 33 with suflicient force to maintain the support 20 in anelevated positioii, so that its top surface is level with the rim 21A ofthe crimping ring 21, whenever the support 20 is freed of the weight ofthe film 77, and is unsupported by the lever 41. The vertical movementof the shaft 36 is controlled by means of the slot 37 and the pin 38. Onthe end of the shaft 36 is fixed a disc 39, which bears upon thefoot 40of the lever 41. This lever is pivoted at 42 to the leg 48 of the table29. The other end of the lever 41 is pivoted at 43 to the link 44. Thelink 44 is actuated by the depression of the pedal 45 on the lever 46,pivoted at 47 to the leg 48 of the table 29'. The lever 46 is pivoted at49 to the link 44.

Fixed ,to the base 28 is the bracket 50, to which is pivoted the lever51. The rear end of the lever 51 is pivoted at 52 to the link 44 andsupports the counterweight 52A, as shown in Figure 1. The forward end 53of the lever 51 is forked to engage the groove 54 in the shaft 55. Fixedto the upper end of the shaft 55 is a weighted handwheel 56.

Fixed to the lower end of the shaft 55 is pressure-plate 22, whichsupports the upper crimping ring 23 and is rotatably mounted therein bymeans of the ball bearings 58.

The plate 22 is afforded slight vertical motion within thering 23 bymeans of the elongated ball race 59. Fixed to the "base 28 are twovertical guide rods 60, shown in Figure 2. These guide rods pass throughthe annular projections 61, fixed to the pe ripheryof the ring 23, sothat the ring 23 is' prevented from rotating but free to slidevertically on the'guides 60.

' The mechanism for positively controlling the rotation of the support20 is shown in Figures 14', 15 and 16, and will now be described.

On the under surface ofsupport 20 are a series of hemisphericaldepressions 62, extending in mutual contact in a complete circle aroundthe centre of the support 20. Rd-

tated on the bushing 31 is an arm 63, carrying at its extremity the pin64, which is adaptedto engage one of the depressions 62, when thesupport 20 is depressed, in a manner which will be elsewhere described'herein.

Mounted on the underside of the arm 63, is the T-slotted bracket 65, inwhich slides the pin 66. The projecting end of the pin 66 is adapted toslide in the spiral groove 67, contained in the circular plate 68, fixedto the base of the ring 21.

Surrounding the rotatin collar 69, to which is fixed the arm. 63, is t espiral spring 71, one end of which is attached to the arm 63, by meansof the screw 72, and the other end of which is attached to the plate 68by means of the screw 73.

The rotation of the arm 63, when engaged with the rotatable support 20,causes the spring-71 to be energized thereby, so that when the pin 64 isreleased from the depression 62, by the elevation of the support 20, theenergized spring will cause the sliding pin 66, to retrace its path inthe groove 67 and in the T-slot of the bracket 65, and will therebyreverse the rotation of the arm 63 so that it will return to its initialposition, against the stop 74A.

The travel of the pin 66 in the slot 67 can be controlled by means ofthe adjustable stop 74, placed in the terminal portion of the slot 67,so that one complete revolution and a 'determined amount of overlap canbe positively controlled thereby during the application of the tape.

The tape-feedin mechanism is designated by the reference 0 aracter 26,and is shown in detail in Figures 2 and 3, and will next be described.

Surroundin the shaft 78, which is vertically mounte on the base 28, isthe collar 79, supporting the disc 80 fixed thereto, and which isadapted tq support thereon a tape spool 81. The tape 99 comprises anadhesive coatin on its inner side C and is obtained in t is conditionbefore-the roll of .tape is put on the spool 81.

The tape spool 81 is adapted to rotate freely on the shaft 78 and itsspeed of rotation is tensionalliy controlled by means of the washer 82,coacting with the spring 83 and the thumbscrew 84.

Fixed to the under side of the base 28 is the bracket 85, containing twoparallel guideways 86. Slidably mounted within the guideways 86 is theslide 87, containing the vertical housing 88. Fixed within the housing88 is the vertical shaft 89, to which is attached the collar 90 and thehandgrip 91. Rotatably mounted on the collar 90 is the roller 92, freeto rotate thereon by means of the ball bearings 93. Surrounding theperiphery of the roller 92 is a cushioning tire 94, preferably made ofgum rubber.

The slide 87 is freely reciprocated in the guides 86 by means ofthehandgrip 91 and is held in its advanced position, as shown in Figure 3,by means of the spring latch 95,

actuated by the spring 96. The latch 95 is supported on the under sideof the bracket 85, by means of the bracket 97, which supports the latchshaft 98, as shown in Figures 3 and 5.

The mechanism for severing and stripping the adhesive coated sealingtape 99 is designated by the reference character 27, shown in Figures 6to 13 inclusive, and in an assembled view shown in Figure 2, 'andisdescribed as follows:

Similar portions of the upper crimping ring 23 and the lower crimpingring 21 are cut away to form an aperture 100, shown in Figures 2 and 10,to permit the application of the tape to the wrapped film when the upperand lower crimping rings 21 and 23 are in their engaged pos1t1on.

Mounted on the lower crimping ring 21 near the forward end of theaperture 100, is the bracket 101. Slidably supported within the bracket101 is the severing plunger 102, actuated by the handgrip 103 and heldin its retracted position by means of the spring 104, one end of whichis attached to the bracket 101 and the other end of which is attached tothe projection 105 on the plunger The projection 105 also serves as astop to limit the retraction of the plunger 102. The plungerreciprocates in the guideways 106, shown in Figure 10.

Mounted on the lower crimping ring 21, near the rearward end of theaperture 100, is the tape-severing blade 107, shown in Figure 10. Theprofile of the cutting edge of this blade is given an angular formation,in'order to more readily penetrate the tape 99.

Mounted also on the base 28 and adjacent to the blade 107, is thebracket 108, supporting the upper stripping roller 109, rotatablymounted thereon and shown in Figure 11.

Rotatablymounted on the base 28, is the lower stripping roller 110,,alsoshown in Figure 11.

The rollers 109 and 110 rotate upon and are each held in position by ascrew, such as is designated at 111 in Figures 12 and 13. Surroundingeach of these screws, and attached thereto is a spiral spring 112, asshown in Figure 12, in such a manner that the free end 113, of thespring 112, projects through the opening 114 at the base of the roller110 and is held in position by means of v the stop 115.

The ends of each of the stripping rollers shown in Figure 11, tofacilitate in the sage of the tape 99, there-between.

After the rollers 109 and 110 have been rotated during the strippingoperation, the

spring 112 acts toreturn these rollers to their initial position, shownin Figure 11. 1 On the further endof the plunger 102, is

the lip 116, adapted to engage the coated side C of the tape 99.

When the tape 99 is in position to be severed, as shown in Figure 6, theplunger 102 is advanced by the operator until the lip 116 comes incontact with the coated side C of the tape 99, and forces the tapethrough the angular opening formed by the stripping rollers 109 and 110.As the tape is forced through this openi it is also forced into contactwith the bla e 107, so that it is penetrated and severed thereby.

The lip 116 remains in contact with the severed end 117 of the tape 99,as shown in Figure 7. When the tape is forced through the openingbetween the rollers 109 and 110, the angular ends of the rollers 109 and110 cause the tape to bend longitudinally until it passes the rear edgeof the rollers 109 and 110, when it again assumes its flattenedposition, as shown in Figure 7.

When the plunger is retracted by means of the spring 104, the coatedside C on the end 117 of the tape 99, is drawn into contact with therear surface of the rollers 109 and 110 and adheres thereto,so that thelip 116 is stripped therefrom and so that the end 117 of the tape 99remains in the position shown in Figure 8. i a

A modified form of the end of the plunger 102, is shown in Figure 9,wherein the blade 107 is adapted to pass between the two forked Anoptional modification of the mecha- I nism for indicating therevolutions of the rotatablesupport 20, is shown in Figures 3 and 17. I

Rotatably mounted on the bushing 31 is collar 25, to which is fixed thearm 123 and the arm 124, as shown in Figure 3. Fixed to the end of thearm 123 is the vertically disposed pin 125, whose upper end 126 isadapted to engage one of the hemispherical depressions 62, on the underside of the support' 20. The engagement of the pin 125 with the support20, causes the arm 123 to rotate therewith around the shaft 33.

Mounted on the base of the crimping ring 21, is the bell 128 and theclapper 129, pivoted at 130 and coacting with the spring 131. Fixed tothe clapper arm 129 is the cam 132, adapted to engage the lower end 127of the pin 125. Mountedon the opposite side 109 and 110, are truncatedat an angle, as.

pas-

of the ring 21 is the bracket 1.33, supporting the spring 134, adaptedto engage the down- ,ward projecting pm 135 in the arm 124.

When the arm 123 is rotated by means of its engagement with therotatable support 20,

the lower end 127 of the pin 125, after one made.

At this point the pm 135 on the arm 124, has forced the spring 134 backinto the position shown by dotted lines in Figure 17 at 134A, when thepin 126 is released from the depression 62in the support 20, the spring134 acting upon the pin 135 and the arm 124 will cause this arm and itsconnected arm 123 to return to their starting position shown in Figure17. The cam and clapper will also return from their depressed positions132A and 129A.

Operation (I) A sheet of wrapping material 75,-

shown in Figure 3, is inserted by the operator. within the annular guidemember 57, so that it will rest upon therotatable support 20. i

- (II) The operator then places the roll of film 7 7- upon the sheet 75and upon the support 20. The weight of the roll of film 77 overcomes theaction of the spring 34 and forces the support 20 into its depressedposition, shown in Figure 3, thereby causing one of the recesses 62 onthe underside of the support 20 to engage the pin 64 of the indicatingmechanism, shown in Figure 15. The depression of the'support 20 by theweight of the film 77 carries the sheet 75 into the crimping ring '21,so that the sheet 75 is thereby crimped around the periphery of the roll77.

(III) A second and similar sheet of wrapping material 76- is placed uponthe top of the roll 77 in its extended position 76A, shown in Figure 4.

(IV) The operator depresses the foot treadle 45, shown in Figure 1,which acts upon the lever 47, the link 44 and the lever 51 to lower thepressure plate 22 and the ring 23.

This causes the ring 23 to crimp the sheet y 7 6 around the roll 77 andoverthe previous- 1y crimped edge of the sheet 75. The plate 22 thenrests upon the sheet 76 and the roll 77. The support 20 thenbears theweight of the roll 77 and the weighted plate 22. The roll 77 preventsthe contact of the rings 21 and 23.

(V) At this point the tape-feeding mechanism is in the position shown inFigure 8, wherein the tape 99 engages the feed roller 92 and thestripping rollers 109 and 110, so that the uncoated or fabric side F ofthe tape 99 engages the rubber tire 94 and so that the coated or gummedside G of the tape 99 engages the stripping rollers 109 and 1 10.

The slide 87, shown in Figure 3, carrying the roller 92 and the tape 99,as shown in Figure 8, is quickly advanced by the operator by means ofthe hand grip 91 so that the roller 92 and the tape 99 assume theposition shown in Figure 2. y i

The quick advance of the slide 87 causes the feed roller 92 to travelalong the tape 99 and strip iti from the stripping rollers 109 and 110,so tiat the end of the tape 99 is forced through the aperture 100, sothat its gummed side C comes in contact with the wrapped periphery ofthe roll 77, as shown in Figure 2.

(VI) \Vith the pedal still depressed, the operator grasps the hand wheel56 and rotates the pressure plate 22, which causes the rotation of thefilm 77 and the support 20 This causes the tape 99 to unwind from thespool 81 and permits the tape 99 to be applied around the crimped edgeof the sheet 76 that overlaps the crimpededge of the sheet 76.

(VII) When theoperator is unable to ro-' tate the hand wheel further, byreason of the stop 74, previously described herein, the slide 87 isretracted by the operator by means of the hand grip 91, so that the feedroller;

92 will travel along'the tape 99 and assume the position shown in Figure6.-

(VIII) The operator then actuates the severing and stripping mechanism,as previously described herein, whichleaves the tape99 in the positionshown in Figure 8 and which permits the plunger 102 to assume itsretracted position, shown in Figure 6.

(IX) The pedal 45 is released'by'the operator and the plate 22 and thering 23 as sume their elevated position, as shown in Figure 3. At thesame time'the lever 41 presses upward and acts upon the shaft 36, whichis in contact with the ball'35 and the shaft 33, so that the support 20bearing the wrapped and sealed roll of film 77 is forced into itselevated position wherein the top surface of the support 20 is levelwith theedge 21A of the ring 21.

(X) The operator then removes the wrapped and sealed roll of film 77 andthe support 20 is held in its elevated position as previously explained.

' The elevation of the support 20 releases the pin 64 from thedepression 62 and the indicating mechanism, so that the arm 63 of iooiio

the rotation controlling device 24 assumes its starting position, aspreviously explained.

The apparatus is now ready to repeat the more of theappended claims.

What I claim as new and desire to-secure by Letters Patent is:

1. An apparatus for applying and sealing sheets-of protective coveringfor an object,

comprising in combination; a base; a support rotatably mounted thereonand adapted to receive said object between two of said sheets; a stopactuated by the rotation of said support for limiting the revolutionsthereof; resilient means for automatically resetting said stop; anannular crimping member surrounding said support andassociatedtherewith, so as to coact'with a reciprocable annular crimping member tocrimp said sheets over the periphery of said object; and means actuatedby the rotation of said support for aifixing sealing tape around thethus wrapped periphery of said object.

2. An apparatus for applying and sealing sheets of protective coveringfor an ob ject, comprising in combination; a base; a support rotatablymounted thereon and adapted to receive said object between two i of saidsheets; an annular crimping member surrounding said support andassociated therewith so as to coact with a reciprocable annular crimpingmember to crimp said sheets around the periphery of said object; meansactuated by the rotation of said sup port for aflixing sealing tapearound the thus wrapped periphery 'of said object; and an automatic stopactuated by the rotation of said support for limitingthe overlap of saidapplied tape.

3. An apparatus for applying and sealing sheets of protective coveringfor an object, comprising in combination; a base; a support rotatablymounted thereon and adapted to receive .said object between two of saidsheets; an annular crimping member surrounding said support andassociated therewith so as to coact with a reciprocable annular crim ingmember to crimp said -[sheets aro nd t e periphery of'said object;'meansactated by the rotation of said support for affixing sealing tapearoundthe thus wrapped periphery of said object; and an automatic stopactuatedby-the rotation of said support for limitingthe overlap of said appliedtape; and resilient means for auto-. matically resetting said sto 4. Anapparatus for app ying and sealing sheets of a protective covering foran object, comprising in combination; a base; a support rotatablymounted thereon and adapted to receive said object between two of saidsheets; an annular crimping member. sur-.

rounding said support and associated therewith so as to coact with areciprocable annular crim ing member to crimp said sheets around t eperiphery of said object; means actuated by the rotation of said supportfor aflixing sealing tape around 'the thus wrapped periphery of saidobject; and an audible signal actuated by the rotation of said supportfor indicating revolutions thereof.

5. An apparatus for applyin and sealing sheets of a protective coveringor an object, comprising in combination; a base; a support rotatablymounted thereon and adapted to receive said object between two of saidsheets; an annular crimping member surrounding said support andassociated therewith so as to coact with a reciprocable annular crimpingmember to crimp said sheets around the periphery of said object; meansactuated by, the rotation of said support for wrapped periphery /of saidobject; and an audible signal actuated by the rotation of said supportfor indicatlng one complete revolution thereof plus a predeterminedoverlap.

affixing sealing tape -around the thus- 6. An apparatus for applying andsealing sheets of protective covering for an object,

comprising in combination; a base; a support rotatably mounted thereonand adapted to receive said object between two of said sheets; anannular crimping member sur-.

rounding said support and associated therewith,'so as to coact with areciprocable annular crimping member to crimp said sheets over theperiphery of said object; and means actuated by the rotation of saidsupport for aflixing sealing tape around the thus wrapped periphery ofsaid object, including tape-feeding means slideably associated with saidbase, a tape-severing shear associated with said base and tape-strippingrollers cooperating with said shear and said tapefeeding means.

7. An apparatus for applying and sealing sheets of a protective coveringfor an object comprising in combination; a base; a sup-- port rotatablymounted thereon and adapted to receive said object between two of saidsheets; an automaticstop actuated by rotation of said support forlimiting the revolutions thereof; an annular crimping member surroundingsaid support and associated therew th so as to coact with a reciprocableannular crimping member to crimp said sheets around the periphery ofsaid object; means actuated by the rotation of said support for affixingsealing tape around the thus wrapped periphery of said object, includinga tape-feeding slide associated with said base, a tape-severing shearassociated with said base and tape-stripping rollers cooperating withsaid shear and said tape-feeding V slide.

pressure plate rotatably mounted within said reciprocable crimpingmember; treadle operated means for reciprocating said plate, togetherwith said reciprocable crimping member; a tape-feeding slide soassociated with said base that the application of said tape to thewrapped periphery of said roll of film is effected by the rotation ofsaid pressure -plate acting upon said roll of film and said support; atape-severing shear associated with said base and tape-stripping rollerscooperating with said shear and said tape-feeding slide.

9. An apparatus for applying and sealing sheets of a protective coveringfor a roll of film, comprisin in combination; a base; a

of said sheets; an annular crimping member surrounding said support andassociated therewith, so as to coact with a reciprocable annularcrimping member to crimp said sheets over the periphery of said object;and means actuated by the rotation of said support for aflixing sealingtape around the thus wrapped periphery of said object, includingtape-feeding means slidably associated with said base, tape-severingmeans associated therewith, including a blade adapted to penetrate theuncoated side of said tape and a reciprocable plunger adapted to engagecoated side of said tape, and tapestripping rollers-cooperating withsaid severing means and said tape-feeding means.

In testimony whereof, I have signed my name to this specification this23rd day of January, 1931.

JOHN H. THEIS S.

support rotata ly mounted thereon and adapted to receive said objectbetween two of said sheets; an automatic stop actuated by the rotationof said support to limit the revolution thereof; an annular crimpingmember surrounding said support and so associated therewith as to coactwith a reciprocable annular crimping member to crimp said sheets overthe periphery of said object; and means actuated by the rotation of saidsupport for' aflixing sealing ta around the thus wrapped periphery ofsai object, including a tapefeeding rollerslideably associated with saidbase, tape-severing means including a fizied blade and a plungerreciprocably associated with said base and tape-stripping rollerscoacting with said plunger to strip the severed end of said tape fromsaid plunger" and to engage said severed end until it is removed fromsaid stripping rollers by the advance of said tape-feeding roller intoits forward position. v

-10. An apparatusforapplyingand sealingsheets' of protective coveringfor am ohect, comprising in combination; a base ;-a support rotatablymounted thereon andadapted to receive said object between two

